I was at the HF yesterday morning along with a few others, and we did some simple testing.

The first time we turned it on and set the target temp to 255, we noticed that the resistor on the left got very hot, while the resistor on the right did not.

The heating resistors are 5-ohm 10w resisters that are wired in parallel. Mr Ohm tells us that in this configuration we should measure 2.5-ohms across the wires that go to the relay board (yes we removed the wires from the relay board, and the resistors were cold). But... we measured 9.5 - 10 ohms. Odd. We then double checked the wiring and that seems correct. We even de-soldered the resistors and measured them separately and got 5 ohms. Something is not right. My gut tells me that one of the resistors are bad, the one on the right I suspect. If I make it by ABC today I'll look and see if they have them.